Rathcroghan in the context of "Royal sites of Ireland"

Medb (Old Irish: [mʲeðβ]), later spelled Meadhbh (Middle Irish: [mʲɛɣβ]), Méabh(a) (Irish: [ˈmʲeːw(ə)]) and Méibh (Irish: [mʲeːvʲ]), and often anglicised as Maeve (/meɪv/ MAYV), is queen of Connacht in the Ulster Cycle of Irish mythology. Her husband in the core stories of the cycle is Ailill mac Máta, although she had several husbands before him who were also kings of Connacht. She rules from Cruachan (now Rathcroghan, County Roscommon). She is the enemy (and former wife) of Conchobar mac Nessa, king of Ulster, and is best known for starting the Táin Bó Cúailnge ("The Cattle Raid of Cooley") to steal Ulster's prize stud bull Donn Cúailnge.

Medb is strong-willed, ambitious, cunning and promiscuous, and is an archetypal warrior queen. She is believed by some to be a manifestation of the sovereignty goddess. Medb of Connacht is probably identical with Medb Lethderg, the sovereignty goddess of Tara.

Cruachan (pronounced [ˈkɾˠuəxən̪ˠ]; named after the archaeological site of Rathcroghan, also known as Cruachan) are an Irish folk metal band from Dublin that have been active since the 1990s. They are recognised as one of the founders of folk metal, and have been acclaimed as having "gone the greatest lengths of anyone in their attempts to expand" the genre. With a specific focus on Celtic music and the use of Celtic mythology in their lyrics, Cruachan's style of folk metal is called Celtic metal.

The Connachta are a group of medieval Irish dynasties who claimed descent from the legendary High King Conn Cétchathach (Conn of the Hundred Battles). The modern western province of Connacht (Irish Cúige Chonnacht, province, literally "fifth", of the Connachta) takes its name from them, although the territories of the Connachta also included at various times parts of southern and western Ulster and northern Leinster. Their traditional capital was Cruachan (modern Rathcroghan, County Roscommon).